/*
 * Copyright (c) 2021 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import arkWorker from "@ohos.worker";
import Index from "../index.js";

let index;
let encode;

export function setEncode(_encode) {
    encode = _encode;
}

export const parentPort = arkWorker.parentPort;

export function handler(msg) {

    msg = msg["data"];

    /** @type Index */
    const args = msg["args"];
    const task = msg["task"];
    const id = msg["id"];

    if (task === "init") {
        const options = msg["options"] || {};
        options["cache"] = false;
        if (options["encode"] === encode.name) {
            options["encode"] = encode;
        }
        index = new Index(options);
    } else {
        const message = index[task].apply(index, args);
        parentPort.postMessage(task === "search" ? { "id": id, "msg": message } : { "id": id });
    }
}


